I have not had issues running PS3MS on Mavericks for the most part. What does happen is after a few days, Java starts taching out a single CORE on the CPU and then the content starts skipping. I simply reboot PS3MS and it will work flawlessly again for another 3 days or so. It is definitely related to the new Java I believe and the Java process is what shows 100% on the single core. I'm patiently waiting for an update that will solve this If I can provide any of the developers any more information please let me know and I will be happy to provide whatever I can!

has there been any progress on this? After upgrading my mac to Mavericks, PMS has started to behave very oddly, I've had to uninstall forcefully using a third party program, then crash restart (hold down the power button) to get rid of it from the dock, otherwise it seems intent on stopping my mac from restarting /shutting down at all.

When this happens it also renders the program completely useless, I've had to resort to using multiple copies to avoid this crash course restart way.

Any solutions? Other than getting an expensive Mini DisplayPort to HDMI adapter and using up one of my two thunderbird ports.... which I really don't want to do.